Which finding would most strongly indicate dehydration in a pediatric patient?

• A. Delayed capillary refill.
• B. Normal capillary refill.
• C. Warm skin with moist mucous membranes.
• D. Increased urine output.

Answer: (A)

Delayed capillary refill reflects reduced peripheral perfusion from fluid loss, which is a hallmark of dehydration in children. Capillary refill time is normally under 2 seconds; when it’s longer, it indicates vasoconstriction and hypovolemia as the body shunts blood to vital organs. In contrast, warm, moist skin and mucous membranes suggest good hydration, normal capillary refill indicates adequate perfusion, and increased urine output points away from dehydration, signaling that the kidneys are processing fluids rather than conserving them. So the presence of a delayed refill best signals dehydration.